Alternative Title

Paper No. 7.37

Location

St. Louis, Missouri

Session Start Date

3-8-1998

Session End Date

3-15-1998

Abstract

The pre-load method of improvement of in-situ, fine grained soils, is frequently used in practice particularly in flood plain environments. A case history is presented in which the same method was used to induce expected settlements in the existing soils before the start of construction. Total settlements and rate of settlement were monitored at two sites for a project in Jefferson County, Missouri. The results presented show that total settlements predicted using one dimensional consolidation theory are in reasonable agreement with the measured settlements in field. The results also show that in a flood-plain environment having compressible layer consisting of silty clays and silts, most of the settlement is likely to take place during placement of the fill.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Fourth Conference

Publisher

University of Missouri--Rolla

Publication Date

3-8-1998

Document Version

Final Version

Rights

© 1998 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Soil Improvement in Flood Plain of the Mississippi River Using Pre-load Fill

St. Louis, Missouri

The pre-load method of improvement of in-situ, fine grained soils, is frequently used in practice particularly in flood plain environments. A case history is presented in which the same method was used to induce expected settlements in the existing soils before the start of construction. Total settlements and rate of settlement were monitored at two sites for a project in Jefferson County, Missouri. The results presented show that total settlements predicted using one dimensional consolidation theory are in reasonable agreement with the measured settlements in field. The results also show that in a flood-plain environment having compressible layer consisting of silty clays and silts, most of the settlement is likely to take place during placement of the fill.